..., and resistance to crack propagation. Tests were carried out by considering an ash-amended rubberized asphalt mixture and, for comparison purposes, a standard gap-graded rubberized mixture (GGRM). Obtained results indicate that the rubberized mixture containing bottom ashes exhibited lower workability (16...

... the propagation process of cracks in brittle rock. Uniaxial and biaxial compression tests were carried out on the transparent rock-like samples containing two embedded 3D parallel cracks. Four types of crack propagation modes were observed: wing crack, petaloid crack, flat-wing crack, and ring-like crack...

... of the pitch between these prefabricated notches, a = 10 mm, 15 mm, and 20 mm, were designed here. The failure form, crack propagation trajectory, crack propagation velocity, stress state at crack tip, ratio of damaged lattice, and load-displacement curve of the specimen under different working conditions were...

... the joint, it can be divided into three types: Type 1: the crack propagates directly along the original path when passing through the joint; Type 2: when the crack passes through the joint, it moves a certain distance along the joint and then cracks again to form a crack; Type 3: the crack moves...

... Study on Crack Propagation at Rock-Concrete Interface Using Digital Image Correlation Technique ,” Engineering Fracture Mechanics   171 (February 2017 ): 50 – 63 . https://doi.org/10.1016/j.engfracmech.2016.12.003 Dong   W. , Rong   H. , Wu   Q. , and Li   J...

.../JTE20180933 / Vol. 48 / No. 1 / 2020 / available online at www.astm.org Mai Lan Nguyen,1 Olivier Chupin,2 Juliette Blanc,2 Jean-Michel Piau,2 Pierre Hornych,2 and Yann Lefeuvre3 Investigation of Crack Propagation in Asphalt Pavement Based on APT Result and LEFM Analysis Manuscript received December 14, 2018...

... that the blasting primary crack fracture features—the typical tensile break, the variation trend of the dynamic stress intensity factor (DSIF), crack propagation velocity, and crack length— were more or less the same, the primary crack fracture was finished during 60–200 μs, the limit DSIF scarcely exceeded 1.5 MN...

...Renshu Yang; Chenxi Ding; Liyun Yang; Yufei Zhang; Peng Xu The aim of this study is to investigate the behavior and the law of crack propagation, particularly under the dynamic-static superimposed stress field in the poly(methyl methacrylate) specimens. We introduce a novel system of digital laser...

.... 19 01 2017 20 04 2017 02 02 2018 brittle fracture steel crack propagation Esso test arrest toughness impact References Robertson , T.S. , “ Propagation of Brittle Fracture in Steel ,” J. Iron Steel Inst. , Vol.  175 , 1953 , pp.  361 – 374 . Feely , F.J...

... Yang , R. S. , Wang , Y. B. , Yang , L. Y. , Xu , P. , “ Dynamic Caustics Experimental Study on Crack Propagation in Two Borehole Cut Blasting ,” J. China Univ. Mining Technol. , Vol. 41 , No. 6 , 2012 , pp. 868 – 872 . Kalthoff , J. F. , “ On the Measurement of Dynamic...

... digital image correlation (DIC) asphalt pavement damage progression crack propagation References Kim , Y.R. and Wen , H. , “ Fracture Energy From Indirect Tension Test ,” J. Assoc. Asphalt Paving Technol. , Vol.  71 , 2002 , pp.  779 – 793 . Seo , Y. , Kim , Y.R...

...Yang Renshu; Wang Yanbing; Guo Dongming; Xue Huajun The crack propagation behavior of the material polymethyl methacrylate with flaws under the effects of explosive stress waves were studied using a digital laser dynamic caustics method. Four different kinds of experimental conditions were set...

...Mohd Minhajuddin; Gourab Saha; Krishna Prapoorna Biligiri The main objective of this study was to deduce and assess crack propagation parameters of twelve asphalt mixtures including: eight conventional dense graded, two polymer-modified gap graded, and two asphalt-rubber gap graded mixtures using...

.... The laboratory experimental program included triaxial shear strength, dynamic (complex) modulus, repeated load permanent deformation, fatigue, crack propagation, and indirect tensile strength tests. The data was used to compare the performance of the fiber-modified mixture to the control. The results showed...

..., and -1.5, to understand the effects of R on crack propagation after an overload. At the baseline of R = 0, after the overload, retardation in the crack propagation was observed, and the crack growth rate decreased. However, in the case of R = -1.5, the fatigue crack growth rate actually accelerated after...

... surfaces, a similar mechanism is assumed to be operating internally in the nitrided specimens. 07 11 2001 03 04 2002 fatigue fracture fatigue life ion nitriding nitrided steel crack initiation crack propagation References Bannantine , J. , Comer , J. , and Handrock...

... uncovered in the course of the round robin or by other researchers during the past two years, and proposed corrections are presented that hopefully will address these shortcomings. KEYWORDS: fracture mechanics, elastic-plastic fracture, dynamic fracture, normalization method, J-integral, crack propagation...

... opening displacement with voltage ratio is employed to correct measured crack length and to determine crack initiation under fatigue with hold time. KEYWORDS: potential drop, fatigue, creep-fatigue, crack initiation, crack propagation Nomenclature a Total crack length d Hole diameter E Young s modulus Kt...

...DG Goulias; I Ishai This paper presents the pneumatic moving wheel experimental system and its usefulness in simulating the role of geosynthetics (geogrids) in limiting crack propagation. The simultaneous development of rutting through the experiment was studied as well. The performance...

...C Makabe; H Kaneshiro; H Yara In order to predict the fatigue life of machine equipment, the fatigue crack propagation law has up to now been investigated using specimens with a simple cross-section shape. In this study, a specimen with three grooves cut in the loading direction was used to clarify...