Relative performance of antisymmetric angle-ply laminated stiffened hypar shell roofs with cutout in terms of static behavior

• Autorzy: Puja B. Chowdhury , Anirban Mitra , Sarmila Sahoo
• Języki publikacji: EN

Abstrakty

EN

A review of literature reveals that bending analysis of laminated composite stiffened hypar shells with cutout have not received due attention. Being a doubly ruled surface, a skewed hypar shell fulfils aesthetic as well as ease of casting requirements. Further, this shell allows entry of north light making it suitable as civil engineering roofing units. Hypar shell with cutout subjected to uniformly distributed load exhibits improved performances with stiffeners. Hence relative performances of antisymmetric angle-ply laminated composite stiffened hypar shells in terms of displacements and stress resultants are studied in this paper under static loading. A curved quadratic isoparametric eight noded element and three noded beam elements are used to model the shell surface and the stiffeners respectively. Results obtained from the present study are compared with established ones to check the correctness of the present approach. A number of additional problems of antisymmetric angle-ply laminated composite stiffened hypar shells are solved for various fibre orientations, number of layers and boundary conditions. Results are interpreted from practical application standpoints and findings important for a designer to decide on the shell combination among a number of possible options are highlighted.

Słowa kluczowe

EN

stiffened hypar shell; cutout; antisymmetric angle ply composite; finite element method

• Wydawca: De Gruyter Open
• Czasopismo: Curved and Layered Structures
• Rocznik: 2016
• Tom: 3
• Numer: 1

Daty

wydano

2016-01-01

otrzymano

2015-11-16

zaakceptowano

2015-12-02

online

2016-01-27

Twórcy

autor

Puja B. Chowdhury

• Department of Civil Engineering, Heritage Institute of Technology, Kolkata 700107, India

autor

Anirban Mitra

• Department of Mechanical Engineering, Jadavpur University, Kolkata 700032, India

autor

Sarmila Sahoo

• Department of Civil Engineering, Heritage Institute of Technology, Kolkata 700107, India

Identyfikatory

DOI

10.1515/cls-2016-0003