{"id":1700,"date":"2023-01-24T16:50:33","date_gmt":"2023-01-24T16:50:33","guid":{"rendered":"https:\/\/wpweb2-prod.rtu.lv\/ise\/?page_id=1700"},"modified":"2023-02-03T11:47:01","modified_gmt":"2023-02-03T11:47:01","slug":"resilient-material-properties-modelling-research","status":"publish","type":"page","link":"https:\/\/ise.rtu.lv\/en\/research\/resilient-material-properties-modelling-research\/","title":{"rendered":"Modelling and studying the properties of inelastic materials"},"content":{"rendered":"\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4iuut-d5d0b3b0845b75c0572d23857a925751\">\n.flex_column.av-4iuut-d5d0b3b0845b75c0572d23857a925751{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-4iuut-d5d0b3b0845b75c0572d23857a925751 av_two_third  avia-builder-el-0  el_before_av_one_third  avia-builder-el-first  first flex_column_div av-zero-column-padding  '     ><section  class='av_textblock_section av-l45o7qap-50ae003464764c7fa3716dff549c34a7 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h3>Resilient material properties, modelling and research<\/h3>\n<p>In most cases, material models are developed based on the principles of linear elasticity. However, many new material systems are non-elastic and these simplified models are not able to describe the behaviour of these materials. Non-linearity can be attributed to various mechanical processes such as damage formation, viscoplasticity and viscoelasticity. We are developing various non-linear material models, methodologies for determining experimental parameters and simulation code for modelling various inelastic mechanisms. Non-linear modelling can help to analyse processes such as polymer curing, shrinkage, material behaviour at elevated temperature or humidity, as well as to simulate natural composite materials and other complex material systems or structures.<\/p>\n<p>Research areas developed:<\/p>\n<p>Development of models for intrinsically elastic materials, including viscoplasticity, viscoelasticity, damage;<br \/>\nDevelopment of methodologies for the determination of parameters of elastic materials;<br \/>\nMechanics of composite materials;<br \/>\nBiological composite materials;<br \/>\nExperimental testing.<\/p>\n<p>EQUIPMENT: Compression, tension and flexural creep benches.<\/p>\n<p>SOFTWARE: ANSYS, Matlab<\/p>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-t0e71-2163f64ef35f5eeae293b37a48daddbe\">\n.flex_column.av-t0e71-2163f64ef35f5eeae293b37a48daddbe{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-t0e71-2163f64ef35f5eeae293b37a48daddbe av_one_third  avia-builder-el-2  el_after_av_two_third  el_before_av_two_fifth  flex_column_div av-zero-column-padding  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-n6qct-d774239aa40e18c2faeb3a599b8a5552\">\n.avia-image-container.av-n6qct-d774239aa40e18c2faeb3a599b8a5552 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-n6qct-d774239aa40e18c2faeb3a599b8a5552 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-n6qct-d774239aa40e18c2faeb3a599b8a5552 av-styling- avia-align-center  avia-builder-el-3  el_before_av_textblock  avia-builder-el-first '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-851 avia-img-lazy-loading-not-851 avia_image ' src=\"https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-092953-1.jpg\" alt='' title='Screenshot 2022-06-09 092953'  height=\"733\" width=\"730\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-092953-1.jpg 730w, https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-092953-1-300x300.jpg 300w, https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-092953-1-80x80.jpg 80w, https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-092953-1-36x36.jpg 36w, https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-092953-1-180x180.jpg 180w, https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-092953-1-702x705.jpg 702w\" sizes=\"(max-width: 730px) 100vw, 730px\" \/><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-l46pqmn6-673ec5b5c9b2237de24cbdbb026457f8 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Stress-strain curves for linear and non-linear materials<\/p>\n<\/div><\/section><\/p><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-ht3od-d9ff0c38a1bdf672cf4d4df69a746a75\">\n.flex_column.av-ht3od-d9ff0c38a1bdf672cf4d4df69a746a75{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-ht3od-d9ff0c38a1bdf672cf4d4df69a746a75 av_two_fifth  avia-builder-el-5  el_after_av_one_third  el_before_av_two_fifth  first flex_column_div av-zero-column-padding  column-top-margin'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-6nnil-a930fcb56a3f5dfe6b9307cfecf6e636\">\n.avia-image-container.av-6nnil-a930fcb56a3f5dfe6b9307cfecf6e636 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-6nnil-a930fcb56a3f5dfe6b9307cfecf6e636 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-6nnil-a930fcb56a3f5dfe6b9307cfecf6e636 av-styling- avia-align-center  avia-builder-el-6  el_before_av_textblock  avia-builder-el-first '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-853 avia-img-lazy-loading-not-853 avia_image ' src=\"https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-093019-1.jpg\" alt='' title='Screenshot 2022-06-09 093019'  height=\"820\" width=\"1158\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-093019-1.jpg 1158w, https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-093019-1-300x212.jpg 300w, https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-093019-1-1030x729.jpg 1030w, https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-093019-1-768x544.jpg 768w, https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-093019-1-260x185.jpg 260w, https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-093019-1-705x499.jpg 705w\" sizes=\"(max-width: 1158px) 100vw, 1158px\" \/><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-l46pre50-e9a4bb1e8b79af2659ce26ba1dc9cb0e '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Comparison of experimental curves and simulations of developed non-linear material models for a natural fibre composite<\/p>\n<\/div><\/section><\/p><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-15hrnx-731c5e75b691cd46f5f2274ca4c7bb68\">\n.flex_column.av-15hrnx-731c5e75b691cd46f5f2274ca4c7bb68{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-15hrnx-731c5e75b691cd46f5f2274ca4c7bb68 av_two_fifth  avia-builder-el-8  el_after_av_two_fifth  el_before_av_one_full  flex_column_div av-zero-column-padding  column-top-margin'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-vn359-e9b20fe0751f3966684f15c57e0ead10\">\n.avia-image-container.av-vn359-e9b20fe0751f3966684f15c57e0ead10 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-vn359-e9b20fe0751f3966684f15c57e0ead10 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-vn359-e9b20fe0751f3966684f15c57e0ead10 av-styling- avia-align-center  avia-builder-el-9  el_before_av_textblock  avia-builder-el-first '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-849 avia-img-lazy-loading-not-849 avia_image ' src=\"https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-092900-1.jpg\" alt='' title='Screenshot 2022-06-09 092900'  height=\"830\" width=\"1171\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-092900-1.jpg 1171w, https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-092900-1-300x213.jpg 300w, https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-092900-1-1030x730.jpg 1030w, https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-092900-1-768x544.jpg 768w, https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-092900-1-260x185.jpg 260w, https:\/\/wpweb2-prod.rtu.lv\/ise\/wp-content\/uploads\/sites\/62\/2022\/06\/Screenshot-2022-06-09-092900-1-705x500.jpg 705w\" sizes=\"(max-width: 1171px) 100vw, 1171px\" \/><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-l46pr018-5324620f6925067ea01a08320bf93415 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Crack in biocomposite material (regenerated cellulose fibres)<\/p>\n<\/div><\/section><\/p><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-l46ptk7d-b50982e4e74ade242f84db8869a852c5\">\n.flex_column.av-l46ptk7d-b50982e4e74ade242f84db8869a852c5{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-l46ptk7d-b50982e4e74ade242f84db8869a852c5 av_one_full  avia-builder-el-11  el_after_av_two_fifth  avia-builder-el-last  first flex_column_div av-zero-column-padding  '     ><section  class='av_textblock_section av-l46puthy-7f497d9bfbf73f3ea8d3e6f427359073 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p><strong>Projects implemented:<\/strong><\/p>\n<p>Implementation of a multi-scale nonlinear viscoelastic and viscoplastic material model with the finite element method<\/p>\n<\/div><\/section><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":96,"featured_media":0,"parent":1829,"menu_order":4,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-1700","page","type-page","status-publish","hentry"],"meta_box":[],"_links":{"self":[{"href":"https:\/\/ise.rtu.lv\/en\/wp-json\/wp\/v2\/pages\/1700","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ise.rtu.lv\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ise.rtu.lv\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ise.rtu.lv\/en\/wp-json\/wp\/v2\/users\/96"}],"replies":[{"embeddable":true,"href":"https:\/\/ise.rtu.lv\/en\/wp-json\/wp\/v2\/comments?post=1700"}],"version-history":[{"count":3,"href":"https:\/\/ise.rtu.lv\/en\/wp-json\/wp\/v2\/pages\/1700\/revisions"}],"predecessor-version":[{"id":1704,"href":"https:\/\/ise.rtu.lv\/en\/wp-json\/wp\/v2\/pages\/1700\/revisions\/1704"}],"up":[{"embeddable":true,"href":"https:\/\/ise.rtu.lv\/en\/wp-json\/wp\/v2\/pages\/1829"}],"wp:attachment":[{"href":"https:\/\/ise.rtu.lv\/en\/wp-json\/wp\/v2\/media?parent=1700"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}