Preliminary communication

Theoretical determination of elasticity constants for steam boiler membrane wall as the structurally orthotropic plate

Josip Sertić ; Mechanical Engineering Faculty in Slavonski Brod, Josip Juraj Strossmayer University of Osijek, Trg I. B. Mažuranić 2, HR-35000 Slavonski Brod, Republic of Croatia
Ivan Gelo ; Mechanical Engineering Faculty in Slavonski Brod, Josip Juraj Strossmayer University of Osijek, Trg I. B. Mažuranić 2, HR-35000 Slavonski Brod, Republic of Croatia
Dražan Kozak orcid.org/0000-0001-5245-4686 ; Mechanical Engineering Faculty in Slavonski Brod, Josip Juraj Strossmayer University of Osijek, Trg I. B. Mažuranić 2, HR-35000 Slavonski Brod, Republic of Croatia
Darko Damjanović orcid.org/0000-0002-7341-6029 ; Mechanical Engineering Faculty in Slavonski Brod, Josip Juraj Strossmayer University of Osijek, Trg I. B. Mažuranić 2, HR-35000 Slavonski Brod, Republic of Croatia
Pejo Konjatić ; Mechanical Engineering Faculty in Slavonski Brod, Josip Juraj Strossmayer University of Osijek, Trg I. B. Mažuranić 2, HR-35000 Slavonski Brod, Republic of Croatia

Abstract

This paper presents theoretical determination of elasticity constants for steam boiler membrane wall as structurally orthotropic plate. Modulus of elasticity and shear modulus are determined in directions parallel and perpendicular to membrane wall pipes for both bending and membrane load. When determining modulus of elasticity for bending load, Engesser's theorem is used for obtaining deflection of membrane wall. After that, from equality of deflections of membrane wall and structurally orthotropic plate, modulus of elasticity is obtained. When determining modulus of elasticity for membrane load, Engesser's theorem is also used, and the expression is obtained from extension equation of membrane wall and structurally orthotropic plate. Shear moduli for both loading conditions are obtained using Poisson's ratios.

Keywords

elasticity constants; membrane wall; steam boiler; structurally orthotropic plate

Hrčak ID:

106703

URI

https://hrcak.srce.hr/106703

Publication date:

21.8.2013.

Article data in other languages: croatian

Visits: 2.856 *