Journal Published Online: 28 July 2016
Volume 44, Issue 5

Weibull Effective Volumes, Surfaces, and Strength Scaling for Cylindrical Flexure Specimens Having Bi-Modularity

CODEN: JTEVAB

Abstract

The objective of this present work was to predict the strength distribution of bi-modular cylindrical ceramic specimen from that of another based on Weibull statistical theory. In order to do so, initially, semi-analytical expression for effective volume and effective surface for the cylindrical bar loaded in flexure were derived. In addition, strength scaling ratio from one flexural loading configuration to another with various Weibull modulus was made available. Elaborate experimentation and numerical simulations was carried out to verify the analytical model. Generally, strength scaling for specimen size is dependent on whether the flaws are volume or surface distributed; however, in this study, it was observed that the ratio of strengths from any two configurations, such as three-point flexural to four-point, is independent of whether the flaws are volume or surface distributed when the cross-sectional sizes are the same.

Author Information

Bhushan, A.
Dept. of Mechanical Engineering, Indian Inst. of Technology, Banaras Hindu Univ.,, Varanasi, IN
Panda, S.
Dept. of Mechanical Engineering, Indian Inst. of Technology, Banaras Hindu Univ.,, Varanasi, IN
Khan, D.
Dept. of Mechanical Engineering, Indian Inst. of Technology, Banaras Hindu Univ.,, Varanasi, IN
Ojha, A.
Dept. of Mechanical Engineering, Indian Inst. of Technology, Banaras Hindu Univ.,, Varanasi, IN
Chattopadhyay, K.
Dept. of Metallurgical Engineering, Indian Inst. of Technology, Banaras Hindu Univ., Varanasi, IN
Kushwaha, H.
Health Safety and Environment Group, Bhabha Atomic Research Centre, Mumbai, IN
Khan, I.
RSD, Bhabha Atomic Research Centre, Mumbai, IN
Pages: 20
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Stock #: JTE20150301
ISSN: 0090-3973
DOI: 10.1520/JTE20150301