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New composites target EV applications

Weaving a new future for composites Chris Oberste

This SAE Aerospace Information Report (AIR) establishes guidelines for evaluating composite electrical connectors and accessories.

This document provides background information on the design, application, repair and inspection of composite structures, including metal bonding, used on civil transport aircraft. The objective of this document is to assist inspectors to know where to expect composite and metal bonded parts on the aircraft, to understand the capabilities of current NDT methods and to aid interpretation of inspection results. ...The objective of this document is to assist inspectors to know where to expect composite and metal bonded parts on the aircraft, to understand the capabilities of current NDT methods and to aid interpretation of inspection results.

This SAE Aerospace Recommended Practice (ARP) describes standard methods for drying commercial aircraft composite structures prior to repair and gives general guidelines on use and applicability. It addresses the removal of liquids that have collected inside the structures through open damage, microcracks, or porosity and the removal of absorbed moisture from the composite material. ...It addresses the removal of liquids that have collected inside the structures through open damage, microcracks, or porosity and the removal of absorbed moisture from the composite material. The methods described in this document shall only be used when specified in an approved repair document or with the agreement of the original equipment manufacturer (OEM) or regulatory authority. ...If this document is used for the drying of materials other than thermosetting composite materials, the fitness for this purpose must be determined by the user.

The purpose of this Aerospace Recommended Practice (ARP) is to provide guidelines for the basic requirements to be considered regarding environmental degradation effects when qualifying composite materials in the design to fulfill the (E)TSO-C90 Minimum Performance Standard. Material qualification is the verifying of a materials attributes and characterizations, which are typically determined through testing.

This paper first examines and quantifies fuel economy and energy incentives for the use of light-weight wheels on passenger cars, then describes and evaluates two radically different composite wheel candidates: a glass fiber-reinforced plastic (FRP) wheel, and a laminated, foam-filled wheel comprised of thin steel shells encapsulating a core of structural plastic.

The three channels through which this adjustment tends toward accomplishment are stated and commented upon, consideration then passing to the three main resources from which the components of composite fuels can be drawn. Regarding benzol and alcohol for use as engine fuel, neither can be produced in sufficient quantities in the near future to replace gasoline and this whole field needs greater research attention, but the danger of thus obscuring the necessity of engine adaptations to secure higher thermal efficiency and lessened dependence upon specialized fuels is also pointed out, these being essential elements in a fundamental solution of the engine-fuel problem.

This recommended practice establishes generic reference standards that will accommodate nondestructive inspections (NDI) on a broad range of non-metallic composite honeycomb structures found on aircraft.

Part 2 is the Commercial Aircraft Composite Structure Bonded Repair curriculum. Part 3 is the Commercial Aircraft Composite Structure Bolted Repair curriculum. ...This document establishes the minimum curriculum requirements for training, practical assessments, and certifying composite structure repair personnel and metalbond repair personnel. It establishes criteria for the certification of personnel requiring appropriate knowledge of the technical principles underlying the composite structural repairs and/or metalbond they perform. ...It establishes criteria for the certification of personnel requiring appropriate knowledge of the technical principles underlying the composite structural repairs and/or metalbond they perform. Persons certified under this document may be eligible for licensing/certification/qualification by an appropriate authority, in addition to this industry accepted technician certification.

This Aerospace Recommended Practice (ARP) describes methods of vacuum bagging, a process used to apply pressure in adhesive bonding and heat curing of thermosetting composite materials and metalbond for commercial aircraft parts. If this document is used for the vacuum bagging of other than thermosetting composite materials and metalbond, the fitness for this purpose must be determined by the user. ...If this document is used for the vacuum bagging of other than thermosetting composite materials and metalbond, the fitness for this purpose must be determined by the user.

This recommended practice establishes a generic composite reference standard that will accommodate nondestructive inspections (NDI) on the full array of glass fiber and carbon fiber laminates found on aircraft.

This SAE Aerospace Information Report (AIR) provides information related to machining of composite materials, components and structures. This document is intended to supplement the machining processes and guidelines provided in OEM repair manuals and structural repair manuals.

This information report provides general guidance for the design considerations, qualification in endurance, strength and fatigue of landing gear using composite components as principle structural elements. The information discussed herein includes the development and evaluation of design data considering: the potential for imbedded manufacturing defects, manufacturing process variations, the component operating environment, potential damage threats in service, rework and overhaul, and inspection processes. ...This AIR mainly discusses the use of thick composites for landing gear structural components. Considerations and recommendations provided in this AIR may therefore differ greatly from considerations and recommendations found in widely accepted composite design references such as CMH-17 and Advisory Circulars such as AC 20-107(B). ...Considerations and recommendations provided in this AIR may therefore differ greatly from considerations and recommendations found in widely accepted composite design references such as CMH-17 and Advisory Circulars such as AC 20-107(B).

This SAE Standard is intended to serve as a guide for the collection of physical, mechanical, and thermal properties of fiber-reinforced polymer composite materials for automotive structural applications. This document attempts to utilize test methods applicable to the widest range of structural materials and processes without compromising the integrity of the data being sought.

This document provides recommendations concerning the minimum knowledge and analytical skill guidelines for a composite and metal bond repair design engineer. Teaching levels have been assigned to this curriculum to define the knowledge, skills and abilities needed to design appropriate repairs.

This SAE Aerospace Recommended Practice (ARP) describes standard methods for restoring damaged core on commercial aircraft sandwich structures. The methods shall only be used when specified in an approved repair procedure or with the agreement of the Original Equipment Manufacturer (OEM) or regulatory authority. The repair materials shall be defined in the approved repairs referencing these methods.

This document is to be used as a checklist by curriculum developers to create courses or training for critical composite repair, maintenance, and overhaul issues. This document will not take the place of courses or training requirements for specific job roles of a composite repair technician, inspector or engineer. ...This document will not take the place of courses or training requirements for specific job roles of a composite repair technician, inspector or engineer.

This specification covers boron filaments and 6061-0 aluminum alloy foil laminated and bonded into a composite sheet.