Results 31 to 40 of about 27,661 (166)

The effect of TiN inclusions on the fracture mechanism of 20CrMnTi steel with lath martensite

open access: yesMaterials Research Express, 2020
This study aims to investigate the effect of TiN inclusions on the fracture mechanism of 20CrMnTi steel with martensite. Size of martensite packets, blocks and TiN inclusions were characterized, and the room-temperature tensile properties, impact ...
Yong Zhu   +3 more
doaj   +1 more source

Research on the Size Effect of Unstable Fracture Toughness by the Modified Maximum Tangential Stress (MMTS) Criterion

open access: yesAdvances in Civil Engineering, 2020
This paper investigates the unstable fracture toughness of specimens of different heights using the double-K model for three-point bending tests on notched concrete beams.
Jian Li   +3 more
doaj   +1 more source

Experimental Investigation on the Tensile and Fracture Properties of Burst-Prone Coal under Quasistatic Condition

open access: yesShock and Vibration, 2021
To study the tensile and fracture properties of the specimen under the quasistatic loading, the Brazilian disc splitting method and the notched semicircular bend (NSCB) method were used to test the tensile properties of coal specimens, and the fracture ...
Shuang Gong   +3 more
doaj   +1 more source

Fracture Behavior of Single-Crystal Sapphire in Different Crystal Orientations

open access: yesCrystals, 2021
In order to study the anisotropy of fracture toughness and fracture mechanism of single-crystal sapphire, the three-point bending tests and the single-edge V-notch beam (SEVNB) were used to test the fracture toughness of A-plane, C-plane, and M-plane ...
Shizhan Huang   +6 more
doaj   +1 more source

Mezzo-scopic Analysis of Fracture Toughness in Steels

open access: yesMaterials Research, 2002
The cleavage fracture toughness of steels was mezzo-scopically analyzed on the basis of the statistical local fracture criterion approach. The statistical stress criterion at the crack tip region suggests that the cleavage fracture toughness in steels ...
Miyata Takashi, Tagawa Tetsuya
doaj  

EXPERIMENTAL STUDY ON INFLUENCE FACTORS OF DYNAMIC FRACTURE TOUGHNESS SIZE BASED ON CT SAMPLE

open access: yesJixie qiangdu, 2023
In order to study the influence of compact tensile (CT) specimen size on dynamic fracture toughness test, a dynamic fracture test of 2112T4 aluminium alloy CT was carried out based on a split Hopkinson tie bar (SHTB) device.
ZOU GuangPing   +5 more
doaj  

Experimental Investigation of the Size Effect of the Mode I Static Fracture Toughness of Limestone

open access: yesAdvances in Civil Engineering, 2019
To study the size effect of the fracture toughness of notched semicircular bend (NSCB) specimens, the dimensionless energy release rate equation of the NSCB specimen was deduced on the basis of the Bažant energy release rate.
Sheng Zhang, Longfei Wang, Mingzhong Gao
doaj   +1 more source

STUDY ON THE DETERMINATION METHOD OF CONSTRAINT DEPENDENT FRACTURE TOUGHNESS OF STRUCTURE

open access: yesJixie qiangdu, 2017
The fracture toughness of material are affected by the constraint at crack tip. In order to assess the structural integrity of cracked structure accurately,it needs to obtain the constraint dependent fracture toughness. In this paper,based on the unified
YANG Jie, WANG Lei
doaj  

Influence of humid and hot environment on the interlayer fracture toughness of composite materials and its mechanism

open access: yesHangkong gongcheng jinzhan
Interlayer fracture toughness is the main indicator of the ability of composite materials to resist interlayer delamination propagation. The humid and hot environment is the main harsh environment faced by aircraft composite structures.
FU Jinghao
doaj   +1 more source

Influence of different sizes of concrete and roller compacted concrete on double-K fracture parameters [PDF]

open access: yesFracture and Structural Integrity, 2016
Affected by physical properties of various components, characteristics and stress states of junction surface and other multiple factors, concrete, as a kind of multi-phase composite material, has complicated failure mechanism, thus making its fracture ...
Liu Chunjiang, Zhang Huabo, Lv Ninghua
doaj   +1 more source

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