2012
DOI: 10.1016/j.mechmat.2012.08.001
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In situ mechanical characterization during deformation of PVC polymeric foams using ultrasonics and digital image correlation

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Cited by 18 publications
(10 citation statements)
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“…Furthermore, experiments using DIC give a good statement on the local micro-structural deformation which could be linked. In this field, only a little work was done which is almost exclusively related to polymeric foams [8,11,13,17,24,25,30]. Based on the current level of knowledge (see Sect.…”
Section: Phenomenological Model With Materials Degradationmentioning
confidence: 99%
See 1 more Smart Citation
“…Furthermore, experiments using DIC give a good statement on the local micro-structural deformation which could be linked. In this field, only a little work was done which is almost exclusively related to polymeric foams [8,11,13,17,24,25,30]. Based on the current level of knowledge (see Sect.…”
Section: Phenomenological Model With Materials Degradationmentioning
confidence: 99%
“…Ω denotes the average individual strain. The pore numbering parameters n for the total pore number and m for the number of collapsed pores can be calculated by the knowledge of micro-structural sizes according to n = L L i (24) and…”
Section: Gedanken Experiments For a Phenomenological Spring Modelmentioning
confidence: 99%
“…Experimental and numerical approaches are more effective in studying the above-mentioned cases of complex loading or non-unform strain distribution. Recent advances in full-field strain measurement technqiues such as Digital Image Correlation (DIC) which is an optical method for observing the full-field deformation of structure[41][42][43][44][45]) and finite element damage modeling (such as cohesive zone models which can efficiently model the crack propagation in different structures[46][47][48]) allow for better description of the deformation and failure in these structures under complex loads, and therefore better designs of the micro-architecture of porous biomaterials. In addition to mechanical aspects, permeability[5] and biological performance of porous biomaterials are also of great importance.…”
mentioning
confidence: 99%
“…A compreensão do comportamento dos materiais poliméricos desde pequenas deformações até a falha é de crucial importância para o desenvolvimento de modelos adequados para a modelagem numérica e para um maior conhecimento dos mecanismos de deformação (Fang et al, 2009;Jerabek et al, 2010). Dados confiáveis de caracterização mecânica em função da deformação são necessários para validar modelos micromecânicos e fenomenológicos, que são usados na modelagem e análise de estruturas (Kidd et al, 2012). Entretanto, pesquisas sobre o comportamento diante de grandes deformações e a falha de polímeros ainda são escassas.…”
Section: Lista De Tabelasunclassified
“…A estrutura macromolecular dos polímeros os leva a apresentar comportamentos específicos. Como os polímeros possuem mecanismos mais complicados de deformação e falha, os resultados experimentais precisam ser especialmente confiáveis, dependendo assim da medição precisa da deformação, sobretudo na região de grande deformação (Kidd et al, 2012). Embora até o escoamento a maioria dos polímeros deformem-se homogeneamente, para o caso de um ensaio de tração em um corpo de prova normalizado, após o escoamento, devido a estricção, o campo de deformação se torna heterogêneo, tornando o uso de técnicas experimentais clássicas, como a extensometria, inadequado (Dudescu, 2015;Grytten et al, 2009).…”
Section: Lista De Tabelasunclassified