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Asymptotic analysis of boundary-effect on strength of concrete

หน่วยงาน Central Queensland University, Australia

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ชื่อเรื่อง : Asymptotic analysis of boundary-effect on strength of concrete
นักวิจัย : Duan, Kai. , Hu, Xiaozhi.
คำค้น : Concrete. , Strategic basic research. , Fracture mechanics. , Building materials. , Engineering. , 861001 Cement and Concrete Materials. , 090503 Construction Materials. , 091308 Solid Mechanics. , 091599 Interdisciplinary Engineering not elsewhere classified. , Boundary effect -- Size effect -- Strength -- Fracture toughness -- Fracture process zone -- Fracture energy
หน่วยงาน : Central Queensland University, Australia
ผู้ร่วมงาน : -
ปีพิมพ์ : 2547
อ้างอิง : http://hdl.cqu.edu.au/10018/40066 , cqu:5109
ที่มา : Duan, K & Hu, X 2004, 'Asymptotic analysis of boundary-effect on strength of concrete' in Li, V.C. et al (eds.) Fracture Mechanics of Concrete Structures. Vail, Colorado, USA, April 12-16, 2004, pp. 197 -204.
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Fracture Mechanics of Concrete Structures, held Vail, Colorado, USA, April 12-16, 2004. USA. : International Association of Fracture Mechanics of Concrete and Concrete Structures, 2004. p. 197-204 8 pages Refereed 0870311352 , ACQUIRE [electronic resource] : Central Queensland University Institutional Repository.
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

A new size effect model is presented, which deals with the specimen boundary influence on the strength of concrete measured from the maximum load tests. The new boundary effect model shows that the size independent tensile strength and fracture toughness (and then the specific fracture energy) of concrete-like quasi-brittle composites can be conveniently determined from the simple maximum load tests. The common size effect observed using geometrically similar specimens is only a special case of the specimen boundary effect on fracture properties of concrete. The difference and similarity between the current boundary effect model and the common size effect models are discussed and illustrated with concrete results measured from four different sets of geometrically similar specimens. It is shown that the asymptotic analysis of the large plate with a small edge crack, for which the front specimen boundary rather than the specimen size needs to be considered, provides the solution to all the quasi- brittle fracture transition curves, or the size effect.

บรรณานุกรม :
Duan, Kai. , Hu, Xiaozhi. . (2547). Asymptotic analysis of boundary-effect on strength of concrete.
    กรุงเทพมหานคร : Central Queensland University, Australia.
Duan, Kai. , Hu, Xiaozhi. . 2547. "Asymptotic analysis of boundary-effect on strength of concrete".
    กรุงเทพมหานคร : Central Queensland University, Australia.
Duan, Kai. , Hu, Xiaozhi. . "Asymptotic analysis of boundary-effect on strength of concrete."
    กรุงเทพมหานคร : Central Queensland University, Australia, 2547. Print.
Duan, Kai. , Hu, Xiaozhi. . Asymptotic analysis of boundary-effect on strength of concrete. กรุงเทพมหานคร : Central Queensland University, Australia; 2547.