The SAE MOBILUS platform will continue to be accessible and populated with high quality technical content during the coronavirus (COVID-19) pandemic. x

Your Selections

L&L Products, Inc.
Show Only

Collections

File Formats

Content Types

Dates

Sectors

Topics

Authors

Publishers

Affiliations

Events

   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Light-Weight Localized Structural Reinforcements for Structural and NVH Applications

L&L Products, Inc.-David Carlson, Michael Czaplicki, Jon Riley
Published 2003-05-05 by SAE International in United States
The use of adhesively bonded localized reinforcements is a relatively new concept in the automotive industry. Although use of this reinforcement method is in its early stages, these reinforcements are now used for a variety of applications in the automotive industry including crash worthiness, fatigue resistance, and NVH. This approach can provide relatively fast, easy, non-intrusive, and cost effective solutions for OEM's when compared to traditional reinforcement methods. Also overall weight can be simultaneously reduced since the reinforcement is placed only where it is needed instead of filling an entire section with foam or changing the metal thickness along an entire body member. Materials and concepts have been developed that can be used to improve the structural stiffness and the resulting NVH performance of the vehicle. This paper will discuss the use of localized reinforcements including materials, applications, and potential uses and the benefits.
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Evaluation of Acoustic Properties of Sealant Materials Using a Modified Impedance Tube

L&L Products, Inc.-Michael J. Serra, William Ferng, W. David Sheasley
Published 2003-05-05 by SAE International in United States
The ability to select the most cost-effective expandable sealant material for filling body cavities requires the testing and assessment of numerous material performance properties. Determination of the acoustical properties of sealants, which are a vital part of their functional end-use performance, has been too often overlooked, primarily because of the cost and limited availability of acoustic testing capabilities. In this paper, we provide an in-depth examination of the repeatability and reproducibility (Gage R&R analysis) of acoustical measurements made using a modified impedance tube. In the process, we identify and quantify sources of potential measurement error, which have relevance to achieving optimal field performance. We then apply the testing methodology to study the dependence of Transmission Loss and Absorption Coefficient on various material parameters.
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Structural Reinforcements for Automotive Applications

L&L Products, Inc.-David Carlson, Michael Czaplicki, Jon Riley
Published 2003-03-03 by SAE International in United States
The use of adhesively bonded localized reinforcements is a relatively new concept in the automotive industry. Although use of this reinforcement method is in its early stages, these reinforcements are now used for a variety of applications in the automotive industry for improvements in crash worthiness, fatigue resistance, and NVH characteristics. This approach can provide relatively fast, easy, non-intrusive, and cost effective solutions for OEM's when compared to traditional reinforcement methods. Also, overall weight can be reduced simultaneously since the reinforcement is placed only where needed instead of filling an entire section with foam or changing the metal thickness along an entire body member. Materials and concepts have been developed that can be used to improve the structural stiffness and the resulting NVH performance of the vehicle. This paper will discuss the use of localized reinforcements including materials, applications, and potential uses and benefits.
Annotation ability available