A model for rubberlike elasticity up to failure

作者：Yu, Lidan; Jin, Tianfu; Yin, Zhengnan; Xiao, Heng^*

来源：Acta Mechanica, 2015, 226(5): 1445-1456.

DOI：10.1007/s00707-014-1262-6

• MOLECULAR-STATISTICAL BASIS
• STRAIN-STRESS RELATIONS
• FULL-NETWORK MODEL
• CONSTITUTIVE MODELS
• LOGARITHMIC STRAIN
• HENCKY STRAIN
• TUBE-MODEL
• BEHAVIOR
• SOLIDS
• EXTENSIBILITY

Multi-axial elastic potentials for isotropic, incompressible elastomeric solids are constructed based solely on uniaxial potentials by means of direct, explicit procedures. Results are presented for the purpose of meeting the following three requirements: (i) the strain-stiffening effect is represented with rapidly growing stress at certain strain limits, (ii) the strain energy never grows to infinity but is always bounded, and (iii) the stress is also bounded and asymptotically tends to vanish with increasing strain up to failure. As such, a realistic simulation of rubberlike elasticity with the strain-stiffening effect up to failure is proposed for the first time. Numerical examples show good agreement with a number of test data.

• 出版日期2015-5
• 单位上海大学