COMPUTATION OF MODE I NOTCH STRESS INTENSITY FACTORS IN A V-NOTCHED TPB SPECIMEN

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KAVEH Z.; AYATOLLAHI M.R.

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Journal: Modares Mechanical Engineering Year:2013 | Volume:13 | Issue:5 Page(s): 74-82

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Information Journal Paper

Title

COMPUTATION OF MODE I NOTCH STRESS INTENSITY FACTORS IN A V-NOTCHED TPB SPECIMEN

Author(s)

KAVEH Z. | AYATOLLAHI M.R. | Issue Writer Certificate

Keywords

NOTCH SHAPE FACTORQ2

SHARP V-NOTCHQ2

THREE-POINT BEND SPECIMENQ2

FE ANALYSISQ2

FEOD METHODQ1

Abstract

Three-point bend (TPB) specimen is an important test sample in fracture study of notched components Made from brittle materials like rocks and ceramics. On the other hand, the notch stress intensity factors (NSIFs) are vital parameters in brittle fracture assessment of V-notched structures. Therefore, computation of SIFs in TPB specimens is of practical interest to engineers and researchers. Since the available methods for calculating NSIFs are often cumbersome and need complicated calculations, it is preferred to show them as a set of dimensionless parameters. In this research, by using a finite element approach called FEOD METHOD, the stress intensity factors are determined numerically for notched TPB specimens having different geometry and loading conditions. The obtained values of NSIF are then converted to dimensionless parameters called NOTCH SHAPE FACTORs YIv and are illustrated in a number of discrete figures. It is shown that each of the three parameters of: the notch opening angle, the notch length and the distance between the two supports has direct relation with YIv The results presented in this paper can be used by designers and engineers for performing the necessary fracture experiments through the TPB specimen without needing complicated and time-consuming calculations.

Cites

EXPERIMENTAL AND NUMERICAL INVESTIGATION OF MODE II FRACTURE TOUGHNESS OF RUBBER-TOUGHENED POLYMETHYL METHACRYLATE BY USING THE ESSENTIAL FRACTURE WORK

References

ON THE RELATIONSHIP BETWEEN STRESS INTENSITY FACTOR (K) AND MINIMUM PLASTIC ZONE RADIUS (MPZR) FOR FOUR POINT BEND SPECIMEN UNDER MIXED MODE LOADING

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APA: Copy

KAVEH, Z., & AYATOLLAHI, M.R.. (2013). COMPUTATION OF MODE I NOTCH STRESS INTENSITY FACTORS IN A V-NOTCHED TPB SPECIMEN. MODARES MECHANICAL ENGINEERING, 13(5), 74-82. SID. https://sid.ir/paper/178995/en

Vancouver: Copy

KAVEH Z., AYATOLLAHI M.R.. COMPUTATION OF MODE I NOTCH STRESS INTENSITY FACTORS IN A V-NOTCHED TPB SPECIMEN. MODARES MECHANICAL ENGINEERING[Internet]. 2013;13(5):74-82. Available from: https://sid.ir/paper/178995/en

IEEE: Copy

Z. KAVEH, and M.R. AYATOLLAHI, “COMPUTATION OF MODE I NOTCH STRESS INTENSITY FACTORS IN A V-NOTCHED TPB SPECIMEN,” MODARES MECHANICAL ENGINEERING, vol. 13, no. 5, pp. 74–82, 2013, [Online]. Available: https://sid.ir/paper/178995/en

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