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The development of optimal lightweig...

University of California, Irvine.

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The development of optimal lightweight truss-core sandwich panels.

Record Type:	Electronic resources : Monograph/item
Title/Author:	The development of optimal lightweight truss-core sandwich panels./
Author:	Langhorst, Benjamin Robert.
Description:	166 p.
Notes:	Adviser: Daniel R. Mumm.
Contained By:	Dissertation Abstracts International69-09B.
Subject:	Applied Mechanics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3328059
ISBN:	9780549803508

The development of optimal lightweight truss-core sandwich panels.
Langhorst, Benjamin Robert.

The development of optimal lightweight truss-core sandwich panels. - 166 p.

Adviser: Daniel R. Mumm.

Thesis (Ph.D.)--University of California, Irvine, 2008.

Sandwich structures effectively provide lightweight stiffness and strength by sandwiching a low-density core between stiff face sheets. The performance of lightweight truss-core sandwich panels is enhanced through the design of novel truss arrangements and the development of methods by which the panels may be optimized. An introduction to sandwich panels is presented along with an overview of previous research of truss-core sandwich panels. Three alternative truss arrangements are developed and their corresponding advantages, disadvantages, and optimization routines are discussed. Finally, performance is investigated by theoretical and numerical methods, and it is shown that the relative structural efficiency of alternative truss cores varies with panel weight and load-carrying capacity. Discrete truss core sandwich panels can be designed to serve bending applications more efficiently than traditional pyramidal truss arrangements at low panel weights and load capacities. Additionally, discrete-truss cores permit the design of heterogeneous cores, which feature unit cells that vary in geometry throughout the panel according to the internal loads present at each unit cell's location. A discrete-truss core panel may be selectively strengthened to more efficiently support bending loads. Future research is proposed and additional areas for lightweight sandwich panel development are explained.

ISBN: 9780549803508Subjects--Topical Terms:

1018410
Applied Mechanics.

The development of optimal lightweight truss-core sandwich panels.
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100 1 $a Langhorst, Benjamin Robert. $3 1030710
245 1 4 $a The development of optimal lightweight truss-core sandwich panels.
300 $a 166 p.
500 $a Adviser: Daniel R. Mumm.
500 $a Source: Dissertation Abstracts International, Volume: 69-09, Section: B, page: 5514.
502 $a Thesis (Ph.D.)--University of California, Irvine, 2008.
520 $a Sandwich structures effectively provide lightweight stiffness and strength by sandwiching a low-density core between stiff face sheets. The performance of lightweight truss-core sandwich panels is enhanced through the design of novel truss arrangements and the development of methods by which the panels may be optimized. An introduction to sandwich panels is presented along with an overview of previous research of truss-core sandwich panels. Three alternative truss arrangements are developed and their corresponding advantages, disadvantages, and optimization routines are discussed. Finally, performance is investigated by theoretical and numerical methods, and it is shown that the relative structural efficiency of alternative truss cores varies with panel weight and load-carrying capacity. Discrete truss core sandwich panels can be designed to serve bending applications more efficiently than traditional pyramidal truss arrangements at low panel weights and load capacities. Additionally, discrete-truss cores permit the design of heterogeneous cores, which feature unit cells that vary in geometry throughout the panel according to the internal loads present at each unit cell's location. A discrete-truss core panel may be selectively strengthened to more efficiently support bending loads. Future research is proposed and additional areas for lightweight sandwich panel development are explained.
590 $a School code: 0030.
650 4 $a Applied Mechanics. $3 1018410
650 4 $a Engineering, Materials Science. $3 1017759
650 4 $a Engineering, Mechanical. $3 783786
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791 $a Ph.D.
792 $a 2008
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