... a pronounced pseudoductility. In contrast, larger specimens behave in a more brittle way, with the size effect on nominal strength closer to that predicted by LEFM. This transition from quasi-ductile to brittle behavior is associated with the size of the fracture process zone (FPZ), which is not negligible...

...Timothy J. Holmquist; Gordon R. Johnson This article presents a computational constitutive model for glass subjected to large strains, high strain rates and high pressures. The model has similarities to a previously developed model for brittle materials by Johnson, Holmquist and Beissel (JHB model...

... specimens in test series I, all the specimens fail by propagation of interface fracture initiating at the bimaterial corner. All the specimens fail dynamically right after reaching the maximum load. This observation confirms high brittleness of the interface failure. Thus, it is not surprising...

.... A., and Herrmann, G., 1981, “On Energy Release Rates for a Plane Cracks,” ASME J. Appl. Mech., 48, pp. 525–530 ; King, R. B., and Herrmann, G., 1981, “Nondestructive Evaluation of the J- and M-Integrals,” ASME J. Appl. Mech., 48, pp. 83–87 ) to study the degradation of a brittle plan strip caused by irreversible...

...Bernhard Pichler; Luc Dormieux This paper deals with the dissipation associated with quasistatic microcracking of brittle materials exhibiting softening behavior. For this purpose an elastodamaging cohesive zone model is used, in which cohesive tractions decrease (during crack propagation...

.... ASCE, 126 ( 9 ), pp. 944 – 953 . Bažant , Z. P. , and Prat , P. C. , 1988 , “ Microplane Model for Brittle Plastic Material: I. Theory ,” J. Eng. Mech. 0733-9399 ASCE, 114 , 1672 – 1688 . Soden , P. D. , Hinton , M. J. , and Kaddour , A. S. , 1998...

.... C. , 1988 , “ Microplane Model for Brittle Plastic Material: I. Theory ,” J. Eng. Mech. 0733-9399 114 , pp. 1672 – 1688 . Bažant...

...Sidney Chocron; James D. Walker; Arthur E. Nicholls; Kathryn A. Dannemann; Charles E. Anderson, Jr. Numerical and analytical simulations of projectiles penetrating brittle materials such as ceramics and glasses are a very challenging problem. The difficulty comes from the fact that the yield...

..., I.A.B.S.E., Zürich, pp. 17–30 ; Carpinteri, A., 1984, “Stability of Fracturing Process in R.C. Beams,” J. Struct. Engng. (A.S.C.E.), 110, pp. 544–558 ) for the analysis of brittle matrix composites with discontinuous ductile reinforcements under the condition of repeated bending loading. In particular, we...

...Richard M. Christensen Three fundamentally different failure theories for homogeneous and isotropic materials are examined in both the ductile and brittle ranges of behavior. All three theories are calibrated by just two independent failure properties. These three are the Coulomb-Mohr form...

...Sefi Givli; Eli Altus Statistical characteristics of failure location and their relation to strength in brittle materials are studied. One-dimensional rod and bending of a beam under arbitrary distributed loads are studied as examples. The analysis is based on the weakest link approach...

...Ting Zhu; Ju Li; Sidney Yip Minimum energy paths for unit advancement of a crack front are determined by reaction pathway sampling, thus providing the reaction coordinates for the analysis of crack tip mechanics in ductile and brittle materials. We compare results on activation energy barrier...

...Rentong Wang; Noriko Katsube; Robert R. Seghi 06 06 2003 18 04 2005 fracture mechanics brittleness cracks failure (mechanical) probability internal stresses bending strength failure analysis Batdorf and Crose ( 1 ) combined the statistical analysis of failure...

...Chee Kiong Soh, Professor; Yu Liu, Research Fellow; Yaowen Yang, Assistant Professor 15 03 2005 brittleness fracture mechanics elasticity concrete compressive strength plasticity We would like to highlight that one of the contributions of our papers 1 2 is to propose...

...N. D. Cristescu, Graduate Research Professor, Mem. ASME 15 03 2005 alumina powders brittleness microcracks fracture mechanics elasticity compressive testing hydrostatics In the article, the damage discussed is the microcracks existing in any brittle material...

... 13 10 2004 continuum mechanics brittleness work hardening stress-strain relations There are classes of quasi-brittle solids where cracks tend to follow tortuous paths when the local stress or strain conditions for the crack propagation are satisfied. Examples are ceramics, where...

... size 35 microns were used to make pellets of 35% porosity and 70% liquid saturation. As the capillary number increased, the failure mode changed from brittle cracking to ductile plastic flow. This change coincided with the transition from strain-rate independent flow stress to strain-rate dependent...

...Viggo Tvergaard Numerical calculations are carried out for a test specimen geometry used by Ashby et al. to study effects of ductile reinforcements in brittle materials. A lead wire well bonded to an outer glass cylinder was used to investigate crack bridging by ductile particles. The main focus...

... , A. , and Kunin , B. , 1987 , “ A Probabilistic Model of Brittle Crack Formation ,” J. Appl. Phys. , 62 ( 10 ), pp. 4124 – 4129 . Kunin , B. , 1994 , “ A Stochastic Model for Slow Crack Growth in Brittle Materials ,” Appl. Mech. Rev. , 47 , pp. 175 – 183 . Altus , E. , 2001...

...Y. Liu, Research Scholar; C. K. Soh, Professor; Y. Dong, Research Fellow; Y. Yang, Teaching Fellow This paper focuses on the application of the damage model for brittle materials proposed in the preceding paper on theory. The evolution rule of damage derived using the Onsager relations is specified...