Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fatigue of cement foams in axial compression
Cast-in-place cement foams with low thermal conductivity and good workability have been used widely in many applications such as thermal insulators for roof-deck systems and lining fills for tunnels. Pre-cast cement foams are typically used in sandwich structures because they are fire-resistant and inexpensive compared to polymeric foams. The theoretical expression for fatigue of cement foams in axial compression is derived using dimensional argument analysis. Bending model and Basquin law for describing the fatigue of individual cell struts are employed in calculating the number of cycles to failure of cement foams. It is found that the fatigue of cement foams in axial compression depends on cyclic stress range, relative density and the fatigue parameters of solid material from which they are made. A series of tests are conducted on the compressive fatigue of alumina cement foams for various relative densities and cyclic stress ranges. Experimental results are compared to theoretical modeling; the agreement is good.
Fatigue of cement foams in axial compression
Cast-in-place cement foams with low thermal conductivity and good workability have been used widely in many applications such as thermal insulators for roof-deck systems and lining fills for tunnels. Pre-cast cement foams are typically used in sandwich structures because they are fire-resistant and inexpensive compared to polymeric foams. The theoretical expression for fatigue of cement foams in axial compression is derived using dimensional argument analysis. Bending model and Basquin law for describing the fatigue of individual cell struts are employed in calculating the number of cycles to failure of cement foams. It is found that the fatigue of cement foams in axial compression depends on cyclic stress range, relative density and the fatigue parameters of solid material from which they are made. A series of tests are conducted on the compressive fatigue of alumina cement foams for various relative densities and cyclic stress ranges. Experimental results are compared to theoretical modeling; the agreement is good.
Fatigue of cement foams in axial compression
Ermüdung von Zementschäumen bei axialer Druckbeanspruchung
Huang, J.S. (Autor:in) / Huang, Z.H. (Autor:in)
Journal of Materials Science ; 35 ; 4385-4391
2000
7 Seiten, 12 Bilder, 12 Quellen
Aufsatz (Zeitschrift)
Englisch
Fatigue of cement foams in axial compression
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