...Aref Ghaderi; Roozbeh Dargazany This new machine-learned (ML) constitutive model for elastomers has been developed to capture the dependence of elastomer behavior on loading conditions such as strain rate and temperature, as well as compound morphology factors such as filler percentage...

... response of pure Ti at ultra-high strain rates. With an optimization-based constitutive modeling approach, we also propose updated strain rate-related parameters for both equations and improve the extent to which the two models can describe the deformation of pure titanium at ultra-high strain rates...

... believe the discrepancy is due to the material viscoelasticity, which was not included in either of the models. Future work is focused on developing a viscoelastic-plastic constitutive model for our numerical simulations, using the results from creep and relaxation tests on Kapton coupons. We anticipate...

... was that optimizing the aspect ratio of the inclusion is much more impactful in terms of increasing the stiffness than optimizing the inclusion orientation. The existence of these optimal designs have important implications in composite component design. Computational mechanics Constitutive modeling...

... , A. , and Ogden , R. W. , 2003 , “ A Pseudo-Elastic Model for Loading, Partial Unloading and Reloading of Particle-Reinforced Rubber ,” Int. J. Solids Struct. , 40 ( 11 ), pp. 2699 – 2714 . 10.1016/S0020-7683(03)00089-1 [18] Dorfmann , A. , and Ogden , R. W. , 2004 , “ A Constitutive Model...

...; published online August 31, 2018. Assoc. Editor: Shaoxing Qu. 06 06 2018 04 08 2018 Constitutive modeling Elasticity Mechanical properties of materials Stress analysis Vibration Materials Structural resonance and self-excited vibrations of hydrodynamic bearings such as whip...

...Qinyi Huang; Yihui Pan; Zheng Zhong In this paper, an acoustomechanical constitutive model is developed to describe the heating effect of a tissue-mimicking gel by cavitation in exposure to high-intensity focused ultrasound (HIFU). An internal variable, representing the evolution of cavitation...

.... Contributed by the Applied Mechanics Division of ASME for publication in the J OURNAL OF A PPLIED M ECHANICS . Manuscript received May 19, 2018; final manuscript received June 24, 2018; published online July 17, 2018. Assoc. Editor: A. Amine Benzerga. 19 05 2018 24 06 2018 Constitutive...

.... Manuscript received April 17, 2018; final manuscript received June 21, 2018; published online July 17, 2018. Assoc. Editor: Yashashree Kulkarni. 17 04 2018 21 06 2018 Computational mechanics Constitutive modeling Mechanical properties of materials Micromechanics Materials...

.... Assoc. Editor: Harold S. Park. 23 12 2017 27 04 2018 Computational mechanics Constitutive modeling Materials In order to construct nanoscale molecular structures, calculate the elemental strain and atomistic potential energy, and conduct the pull-out simulations...

... 14, 2017; final manuscript received March 18, 2018; published online June 14, 2018. Assoc. Editor: George Kardomateas. 14 12 2017 18 03 2018 Computational mechanics Constitutive modeling Mechanical properties of materials Micromechanics Materials Fiber reinforced...

... for the evolution of the damage. All parameters are required to be positive. Computational mechanics Constitutive modeling Elasticity Flow Mechanical properties of materials Materials Fracture Soft elastomeric materials are widely used in applications such as carriers for drug delivery...

... ( x , y ) and G 2 ( x , y ) will be (76) k 1 μ G 1 ( x , y ) = k 2 μ G 2 ( x , y ) = { x − x y x ≤ y y − x y x > y Constitutive modeling Internal flow Thermodynamics Materials...

...: Shaoxing Qu. 08 03 2018 17 04 2018 Constitutive modeling Elasticity Flow Materials Fracture Rubber bearings are widely used in structural engineering yet the problem of their design is not completely resolved [ 1 ]. Among the difficulties, there is a necessity...

... OF A PPLIED M ECHANICS . Manuscript received November 12, 2017; final manuscript received March 31, 2018; published online May 8, 2018. Assoc. Editor: A. Amine Benzerga. 12 11 2017 31 03 2018 Constitutive modeling Flow Mechanical properties of materials Plasticity Materials...

... vector, while elastic modulus is expressed by a fourth-order tensor mapping the second-order strain tensor to the second-order stress tensor. Constitutive modeling Structures Materials Copyright © 2018 by ASME 2018 0021-8936/2018/85(7)/074502/5/ $25.00 ...

... products, soft devices and the fabrication of 3D complex structures. Constitutive modeling Mechanical properties of materials Stress analysis Structures Materials The 3D wrinkled film/substrate system studied herein is schematically illustrated in Fig. 1 . At the initial state, the film...

..., stress rate, and stress history. Based on the experimental observations, a damage-coupled hyper-viscoelastic-plastic constitutive model is then developed to describe the ratchetting of the filled rubber, which consists of three branches in parallel, i.e., a hyperelastic, a viscoelastic, and a plastic one...

...Simon P. H. Skovsgaard; Henrik Myhre Jensen Failure by steady-state kink band propagation in layered materials is analyzed using three substantially different models. A finite element model and an analytical model are developed and used together with a previously introduced constitutive model...

...Sandeep Singh; B. P. Patel An approximate mathematical treatise is proposed to improve the accuracy of multiscale models for nonlinear mechanics of two-dimensional (2D) nanomaterials by taking into account the contribution of dihedral energy term in the nonlinear constitutive model...