...Markus J. Buehler Dynamic fracture is an important area of materials analysis, assessing the atomic-level mechanisms by which materials fail over time. Here, we focus on brittle materials failure and show that an atomistically derived progressive transformer diffusion machine learning model can...

... this challenge. However, the effect of fiber geometry on the fracture and fatigue of composite hydrogels is still elusive. Here, we use a model composite hydrogel to study the influence of fiber width, fiber spacing, and fiber configuration on these properties. It is found that the toughness of the composite...

... by the Applied Mechanics Division of ASME for publication in the J ournal of A pplied M echanics . 17 11 2020 08 01 2021 08 01 2021 23 02 2021 armor ceramics sensitivity analysis constitutive modeling of materials dynamics fracture granular flow impact mechanical...

... of force length, ductile response occurs similar to a linear “spring” interface. Both behaviors ultimately give rise to the failure of the interface. Results for the stiff, strong interface under a small applied torque show excellent agreement with the static fracture mechanics solution of Benthem...

... in the J OURNAL OF A PPLIED M ECHANICS . Manuscript received June 28, 2018; final manuscript received August 16, 2018; published online September 12, 2018. Assoc. Editor: Yihui Zhang. 28 06 2018 16 08 2018 Computational mechanics Flow Micromechanics Fracture It has long...

... and fracture toughness of the system. We also demonstrate how the failure mode may switch between edge crack propagation and inner crack nucleation depending on the geometric characteristics of the bulk in the vicinity of the interface. Numerically, we investigate using the finite element method two different...

... displacement control (Fig. 9( a ) ), the crack-tip energy release rate for the immersed case increases monotonically under load control, approaching the same long-time limit as for the not-immersed case. Thus, under different loading conditions, the fracture behavior could be different for the immersed...

...: Shaoxing Qu. 25 05 2018 30 06 2018 Figure 4 illustrates an example of fluid communication among wellbore, rock matrix, and natural fractures when drilling through a naturally fractured shale with content of negatively charged clay. The electrochemical potentials of all fluid species...

...Pengyu Pei; Yan Shi; Guang Yang; Cunfa Gao This paper presents a detailed study on the fracture behaviors of soft materials with hard inclusion. Stress concentrations on the interfaces of hard and soft materials are considered as the key factor for structure fracture. Based on linear fracture...

... modeling Flow Mechanical properties of materials Plasticity Materials Fracture It is well established that material elements near a mode I crack tip undergo nonproportional straining due to crack advance, see for example the early analysis of crack growth by Rice and Sorensen [ 1...

... deformation regime. We investigate the stepwise phenomenon in air and in water, respectively, under mode I fracture. Our simulations show that despite the homogeneous material properties, the crack growth under mode I fracture is stepwise, and this pattern is influenced by the hydraulic permeability...

...Erfan Sarvaramini; Maurice B. Dusseault; Robert Gracie Microseismic imaging of the hydraulic fracturing operation in the naturally fractured rocks confirms the existence of a stimulated volume (SV) of enhanced permeability. The simulation and characterization of the SV evolution is uniquely...

...B. Chen; Andrew R. Barron; D. R. J. Owen; Chen-Feng Li Based on the KGD scheme, this paper investigates, with both analytical and numerical approaches, the propagation of a hydraulic fracture with a fluid lag in permeable rock. On the analytical aspect, the general form of normalized governing...

...Yunwei Mao; Lallit Anand If an elastomeric material is subjected to sufficiently large deformations, it eventually fractures. There are two typical micromechanisms of failure in such materials: chain scission and crosslink failure. The chain scission failure mode is mainly observed in polymers...

...: 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...

.... Mech. Sci. , 27 ( 7–8 ), pp. 423 – 427 . 10.1016/0020-7403(85)90032-3 [21] Lubliner , J. , 1990 , Plasticity Theory , Macmillan , New York . [22] Maugin , G. A. , 1992 , The Thermomechanics of Plasticity and Fracture , Cambridge University Press , Cambridge, UK . [23...

...C. Liu Through the analysis of a model problem, a thin elastic plate bonded to an elastic foundation, we address several issues related to the miniature bulge test for measuring the energy-release rate associated with the interfacial fracture of a bimaterial system, where one of the constituents...

...Zhi-Qiao Wang; Emmanuel Detournay This paper investigates the tip region of a hydraulic fracture propagating near a free-surface via the related problem of the steady fluid-driven peeling of a thin elastic layer from a rigid substrate. The solution of this problem requires accounting...

... OF A PPLIED M ECHANICS . Manuscript received November 26, 2017; final manuscript received December 15, 2017; published online January 16, 2018. Editor: Yonggang Huang. 26 11 2017 15 12 2017 Flow Structures Fracture Possessing muscle-like performances, electro-active polymer...

... 07 12 2017 Flow Hydraulics Internal flow Stress analysis Fracture References [1] Spence , D. A. , and Sharp , P. , 1985 , “ Self-Similar Solutions for Elastohydrodynamic Cavity Flow ,” Proc. R. Soc. London, Ser. A , 400 ( 1819 ), pp. 289 – 313 . 10.1098/rspa...