Journal of Applied Mechanics最新文献_第6页

Unequal-biaxial taut states of electro-active polymeric composites 电活性聚合物复合材料的非等轴绷紧状态

Journal of Applied Mechanics Pub Date : 2023-12-12 DOI: 10.1115/1.4064256

Sankalp Gour, Deepak Kumar

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引用次数: 0

Uncoupling of Linear Multi-degree of Freedom Damped Gyroscopic Potential Systems 线性多自由度阻尼陀螺势能系统的解耦

Journal of Applied Mechanics Pub Date : 2023-11-23 DOI: 10.1115/1.4064127

F. Udwadia, R. Bulatović

引用次数: 0

A comment on ‘The trousers fracture test for viscoelastic elastomers’, JAM 90(7), 071010, 2023 对 "粘弹性弹性体的裤管断裂测试 "的评论，《机械工程学报》90（7），071010，2023 年

Journal of Applied Mechanics Pub Date : 2023-11-23 DOI: 10.1115/1.4064126

Michele Ciavarella

{"title":"A comment on ‘The trousers fracture test for viscoelastic elastomers’, JAM 90(7), 071010, 2023","authors":"Michele Ciavarella","doi":"10.1115/1.4064126","DOIUrl":"https://doi.org/10.1115/1.4064126","url":null,"abstract":"The Rivlin-Thomas classical energy balance model for tearing tests suggests that the fracture energy G is proportional to the work of the external load in the legs (potential energy), for not too large stretches in the legs, so the increase of G with loading rate is observed or measured, but not really explained by the model. Shrimali & Lopez-Pamies (SLP) have recently built a theory on viscoelastic fracture from recent experimental evidence of a critical (stretch rate independent) stretch on nucleation of cracks in pure shear tests. The theory in other words incorporates this evidence in an otherwise energy based criterion. In the paper “The trousers fracture test for viscoelastic elastomers”, JAM 90(7), 071010, 2023, they seem to obtain the critical (stretch rate independent) stretch condition for the case of trouser tests (applying their theory from a long enough crack) both in nucleation and steady state propagation. This outcome seems reasonable since for a linear material, looking at the elastic limit cases of very slow and very fast rate it would produce an increase of the load, and hence of the fracture energy, proportional to the increase of the modulus, which is in line with what has been found experimentally, although possibly in contrast with classical theories.","PeriodicalId":508156,"journal":{"name":"Journal of Applied Mechanics","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139245628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical Metamaterials Fabricated from Self-assembly: A Perspective 自组装制造的机械超材料：透视

Journal of Applied Mechanics Pub Date : 2023-11-12 DOI: 10.1115/1.4064144

Hanxun Jin, Horacio D. Espinosa

引用次数: 0