US 9,140,673 B2 · Method for fabricating composite porosity standards

Abstract

A method for fabricating composite porosity standards may include the steps of providing a plurality of uncured composite coupons, each uncured composite coupon being formed from a composite material, providing a plurality of curing processes, selecting a curing process for each of the uncured composite coupons, curing each uncured composite coupon in accordance with a selected curing process to form a plurality of cured composite coupons, each cured composite coupon being formed from the composite material and having a percent porosity, measuring the percent porosity of each cured composite coupon, and correlating each measured percent porosity of a plurality of measure percent porosities to a corresponding cured composite coupon of the plurality of cured composite coupons to form a plurality of porosity standards.

Claims24

Dependent claims

A method for fabricating a composite porosity standard, said method comprising:

selecting a curing process from a porosity tree of a plurality of curing processes ranked by a predicted percent porosity of a selected composite material expected to be obtained by each of said plurality of curing processes;
curing an uncured composite coupon comprising said selected composite material in accordance with said curing process selected from said porosity tree to form a cured composite coupon having a percent porosity corresponding to said predicted percent porosity;
measuring said percent porosity of said cured composite coupon;
and
correlating a measured percent porosity to said cured composite coupon to form said composite porosity standard.

2 more elements

A method for fabricating composite porosity standards, said method comprising:

providing a plurality of uncured composite coupons, each uncured composite coupon of said plurality of uncured composite coupons comprising a selected composite material;
providing a porosity tree of a plurality of curing processes ranked by predicted percent porosities of said selected composite material expected to be obtained by each curing process of said plurality of curing processes;
selecting particular curing processes from said plurality of curing processes to be associated with said each uncured composite coupon to obtain an expected percent porosity;
curing said each uncured composite coupon in accordance with an associated particular curing process to form a plurality of cured composite coupons having percent porosities corresponding to said predicted percent porosities;
measuring a percent porosity of each cured composite coupon of said plurality of cured composite coupons;
and
correlating a measured percent porosity to a corresponding cured composite coupon of said plurality of cured composite coupons to form a plurality of composite porosity standards representing a range of percent porosities.

4 more elements

Dependencies are inferred from the claim text.

Method for fabricating composite porosity standards

Life of this patent

Method for fabricating composite porosity standards

Life of this patent

Abstract

Claims24