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Size effect on specific fracture energy of concrete

หน่วยงาน Central Queensland University, Australia

รายละเอียด

ชื่อเรื่อง : Size effect on specific fracture energy of concrete
นักวิจัย : Duan, Kai. , Hu, Xiaozhi. , Wittmann, Folker.
คำค้น : Materials. , TBA , Fracture mechanics. , 680302 Cement and concrete materials , 680301 Stone, ceramics and clay materials , 680603 Materials performance and processes , 291402 Composite Materials , 291499 Materials Engineering not elsewhere classified , 290899 Civil Engineering not elsewhere classified , Concrete. , Fracture energy -- Fracture process zone -- Size effect -- Boundary effect -- Local fracture energy
หน่วยงาน : Central Queensland University, Australia
ผู้ร่วมงาน : -
ปีพิมพ์ : 2550
อ้างอิง : http://hdl.cqu.edu.au/10018/16900 , cqu:3131
ที่มา : Duan, K Hu, X & Wittmann, F 2007, 'Size effect on specific fracture energy of concrete', Engineering Fracture Mechanics, vol.74, pp.87-96. doi:10.1016/j.engfracmech.2006.01.031
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Engineering fracture mechanics London : Elsevier, 2007. Vol. 74, (2007), p. 87-96 10 pages Refereed 0013-7944 , aCQUIRe [electronic resource] : Central Queensland University Institutional Repository.
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Size effect on the specific fracture energy GF of concrete can be adequately modelled by an uneven fracture energy distribution along the crack path induced by the specimen boundary influence. The boundary influence on GF can be neglected only if a specimen is very large so that the boundary region is a very small portion of the total fracture area. The underlying principle on the specimen boundary induced size effect provides a simple and logical explanation for the commonly observed size effect on GF. The boundary effect model recently proposed by the authors is used in this paper to quantitatively evaluate the specimen boundary influence so that the size-independent fracture energy is derived, which otherwise can only be measured with very large concrete specimens. New experimental results from a very different materialsystem, polymer, are analysed together with concrete results by the simple boundary effect model.

บรรณานุกรม :
Duan, Kai. , Hu, Xiaozhi. , Wittmann, Folker. . (2550). Size effect on specific fracture energy of concrete.
    กรุงเทพมหานคร : Central Queensland University, Australia.
Duan, Kai. , Hu, Xiaozhi. , Wittmann, Folker. . 2550. "Size effect on specific fracture energy of concrete".
    กรุงเทพมหานคร : Central Queensland University, Australia.
Duan, Kai. , Hu, Xiaozhi. , Wittmann, Folker. . "Size effect on specific fracture energy of concrete."
    กรุงเทพมหานคร : Central Queensland University, Australia, 2550. Print.
Duan, Kai. , Hu, Xiaozhi. , Wittmann, Folker. . Size effect on specific fracture energy of concrete. กรุงเทพมหานคร : Central Queensland University, Australia; 2550.