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Size effect and quasi-brittle fracture the role of FPZ /

หน่วยงาน Central Queensland University, Australia

รายละเอียด

ชื่อเรื่อง : Size effect and quasi-brittle fracture the role of FPZ /
นักวิจัย : Hu, Xiaozhi. , Duan, Kai.
คำค้น : Pure basic research. , 970109 Expanding Knowledge in Engineering. , 091299 Materials Engineering not elsewhere classified. , 091399 Mechanical Engineering not elsewhere classified. , 091308 Solid Mechanics. , Fracture mechanics. , Materials. , Strength of materials. , Fracture process zone (FPZ) -- Size effect (SE) -- Boundary effect (BE) -- Tensile strength -- Fracture toughness -- Scaling
หน่วยงาน : Central Queensland University, Australia
ผู้ร่วมงาน : -
ปีพิมพ์ : 2551
อ้างอิง : http://hdl.cqu.edu.au/10018/27390 , cqu:4181
ที่มา : Hu, X & Duan, K 2008, "Size effect and quasi-brittle fracture: the role of FPZ", International Journal of Fracture, vol.154, nos.1 & 2, pp.3-14.
ความเชี่ยวชาญ : -
ความสัมพันธ์ : International journal of fracture. Netherlands. : SpringerLink, 2008. Vol. 154, no. 1-2 (2008), p. 3-14 12 pages Refereed 0376-9429 1573-2673 (online) , ACQUIRE [electronic resource] : Central Queensland University Institutional Repository.
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Abstract Fracture process zone (FPZ), or the crack-tip damage zone created by crack-bridging and micro-cracking activities, in a specimen of a concrete-like material is comparable to the crack size and uncracked ligament, so fracture is typically quasi-brittle. Increasing or decreasing the specimen size, quasi-brittle fracture transition occurs towards the toughness controlled or strength-controlled fracture, which is known as size effect (SE). In this study it is shown that the “size-dependent” quasi-brittle fracture transition is actually due to the interaction of FPZ with the nearest structure boundary rather than the size variation, and the widely-accepted SE for geometrically-similar specimens of different sizes is only a special case ofquasi-brittle fracture controlled by the FPZ/boundary interaction. Relevant SE relations are critically reviewed and explained by emphasizing the key SE mechanism, FPZ/boundary interaction.

บรรณานุกรม :
Hu, Xiaozhi. , Duan, Kai. . (2551). Size effect and quasi-brittle fracture the role of FPZ /.
    กรุงเทพมหานคร : Central Queensland University, Australia.
Hu, Xiaozhi. , Duan, Kai. . 2551. "Size effect and quasi-brittle fracture the role of FPZ /".
    กรุงเทพมหานคร : Central Queensland University, Australia.
Hu, Xiaozhi. , Duan, Kai. . "Size effect and quasi-brittle fracture the role of FPZ /."
    กรุงเทพมหานคร : Central Queensland University, Australia, 2551. Print.
Hu, Xiaozhi. , Duan, Kai. . Size effect and quasi-brittle fracture the role of FPZ /. กรุงเทพมหานคร : Central Queensland University, Australia; 2551.