Neutrally stable behavior in fiber-reinforced composite tape springs

Schultz, Marc R.; Hulse, Michael J.; Keller, Philip; Turse, Dana

doi:10.1016/j.compositesa.2008.03.004

Cited by 40 publications

(12 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previous research has experimentally found a similar behavior when the matrix stiffness was selected to be low enough [21]. This suggests that it is indeed matrix relaxation that is responsible for the deployment failure of the tape spring.…”

Section: Deployment After Stowagementioning

confidence: 48%

Effects of Long-Term Stowage on the Deployment of Bistable Tape Springs

Brinkmeyer

Pellegrino

Weaver

2015

Journal of Applied Mechanics

View full text Add to dashboard Cite

In the context of strain-energy-deployed space structures, material relaxation effects play a significant role in structures that are stowed for long durations, for example, in a space vehicle prior to launch. Here, the deployment of an ultrathin carbon fiber reinforced plastic (CFRP) tape spring is studied, with the aim of understanding how longduration stowage affects its deployment behavior. Analytical modeling and experiments show that the deployment time increases predictably with stowage time and temperature, and analytical predictions are found to compare well with experiments. For cases where stress relaxation is excessive, the structure is shown to lose its ability to deploy autonomously.

show abstract

Section: Deployment After Stowagementioning

confidence: 48%

Effects of Long-Term Stowage on the Deployment of Bistable Tape Springs

Brinkmeyer

Pellegrino

Weaver

2015

Journal of Applied Mechanics

View full text Add to dashboard Cite

show abstract

“…The magnitude of the thermal prestress can be tailored through the composite laminate layup [3]. Tape springs are a class of structures that have been investigated previously as compliant mechanisms [4,5], and have demonstrated bistability [6] and zero stiffness capabilities [5,7,8]. In classical mechanisms multiple members would be required to enable such behaviour [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Thermal Prestress in Composite Compliant Shell Mechanisms

Stacey

O’Donnell

Schenk

2019

Journal of Mechanisms and Robotics

View full text Add to dashboard Cite

This paper explores the ability to tailor the mechanical properties of composite compliant shell mechanisms, by exploiting the thermal prestress introduced during the composite laminate cure. An extension of an analytical tape spring model with composite thermal analysis is presented, and the effect of the thermal prestress is studied by means of energy landscapes for the cylindrical composite shells. Tape springs that would otherwise be monostable structures become bistable and exhibit greater ranges of low-energy twisting with thermally induced prestress. Predicted shell geometries are compared with finite element (FE) results and manufactured samples, showing good agreement between all approaches. Wider challenges around the manufacture of prestressed composite compliant mechanisms are discussed.

show abstract

“…For decades, thin metallic tape-spring structures have been used to construct storable tubular extendible members (STEMs) [2]. More recently, composite tape-springs have been considered for lightweight, low cost and efficient deployable booms [3]. The folding behaviour of a tape-spring structure is highly nonlinear and directionally dependent [4].…”

Section: Introductionmentioning

confidence: 99%

Shape of a bistable composite tape-spring in folding

Wang

Seffen

Guest

2019

AIAA Scitech 2019 Forum

View full text Add to dashboard Cite

A composite tape-spring structure is a thin-walled, laminated open slit tube. With fibres oriented at ±45˚, it is stable in both the extended and coiled configurations. In this research, we devise a simple 'free' bending system with minimal constraints to evaluate the folding nature of composite tape-springs. The shape of the tape-spring is characterised by considering both the shape during folding and the final folded shape. Experiments are carried out on composite tapes with different geometries: a finite element model is established and calibrated using the experimental results; a parametric study on the folded tape shape is performed based on a theoretical model to evaluate the effects of the initial geometry. Torsional buckling is clearly observed, and complemented with details from the FE model. Here, we show good agreement between experiments, simulation and theoretical analysis.

show abstract

Neutrally stable behavior in fiber-reinforced composite tape springs

Cited by 40 publications

References 9 publications

Effects of Long-Term Stowage on the Deployment of Bistable Tape Springs

Effects of Long-Term Stowage on the Deployment of Bistable Tape Springs

Thermal Prestress in Composite Compliant Shell Mechanisms

Shape of a bistable composite tape-spring in folding

Contact Info

Product

Resources

About