ASTM STP 1149-1992 PDF

Full title and description

Small‑Crack Test Methods — ASTM Special Technical Publication STP 1149 (1992). Proceedings and invited papers from the Symposium on Small‑Crack Test Methods, edited by James M. Larsen and John E. Allison; a single authoritative reference that reviews measurement, monitoring and analysis techniques for small and micro fatigue cracks.

Abstract

This STP collects peer‑reviewed papers and summaries that summarize the state of the art (as of 1992) in experimental methods and analytical approaches for characterizing small fatigue cracks. Topics include fracture‑mechanics parameters for small cracks, replication and photomicroscopy, real‑time interferometric and electrical‑potential monitoring, ultrasonic measurement methods, and analysis/simulation approaches used to interpret small‑crack growth behavior. The volume is intended as a practical reference for laboratories and researchers working on fatigue initiation and early crack growth.

General information

• Status: Published (ASTM STP — proceedings volume; available in print and electronic formats).
• Publication date: 1992.
• Publisher: ASTM International (Philadelphia, PA).
• ICS / categories: 77 (Metallurgy) — testing of metals / mechanical testing and related fatigue/fracture topics (typical ICS placement: 77.040 Mechanical testing of metals).
• Edition / version: STP 1149 (1992 edition; ASTM Special Technical Publication series, developed under Committee E08 — Fatigue and Fracture).
• Number of pages: Bibliographic listings report between 222 and 230 pages depending on listing/format (catalog records commonly cite 222 pages for the print edition; the ASTM product listing shows 230 pages for some formats).

Scope

Provides a comprehensive overview of experimental techniques and analysis methods specifically aimed at detection, measurement and interpretation of small and micro fatigue cracks. The volume brings together measurement practice (replication, photomicroscopy, interferometry, electrical potential and ultrasonic techniques), fracture‑mechanics parameterization for short cracks, and modeling/simulation approaches to relate laboratory measurements to service behavior. It is set out as proceedings from a technical symposium and serves as a reference compendium rather than a prescriptive consensus test method.

Key topics and requirements

• Fracture‑mechanics parameters and their application to small/crack‑length regimes (how K, ΔK and small‑crack behavior differ from long‑crack data).
• Replication and photomicroscopy techniques for tracking very small crack growth.
• Real‑time measurement methods: interferometric strain/displacement gages and electrical‑potential monitoring of crack growth.
• Ultrasonic and non‑contact approaches for crack sizing and opening‑behavior measurement.
• Experimental design and data analysis guidance for short‑crack testing, including calibration and interpretation caveats.
• Simulation and modeling approaches to reconcile small‑crack test results with structural life prediction.

Typical use and users

Used as a technical reference by materials and mechanical engineers, fatigue and fracture researchers, test laboratories, university researchers, and R&D teams in aerospace, automotive, defense and other industries where early crack initiation and short‑crack growth critically affect component life. It is primarily a reference/proceedings volume for researchers rather than a single prescriptive ASTM test method.

Related standards

Relevant ASTM consensus standards and test methods commonly used alongside the STP findings include ASTM E647 (Standard Test Method for Measurement of Fatigue Crack Growth Rates) and ASTM E399 / E1820 (fracture‑toughness test methods and fracture‑mechanics procedures). The STP provides experimental background and measurement technique discussions that complement these consensus methods.

Keywords

small crack, microcrack, fatigue, fracture mechanics, crack growth, replication, photomicroscopy, interferometry, electrical potential, ultrasonic measurement, ASTM STP, materials testing, short‑crack behavior.

FAQ

Q: What is this standard?

A: STP 1149 is an ASTM Special Technical Publication (proceedings volume) titled "Small‑Crack Test Methods" (1992), compiling symposium papers and reviews on measurement and analysis of small fatigue cracks. It is a reference/proceedings book rather than a single consensus test method.

Q: What does it cover?

A: It covers experimental techniques and analytical approaches for detecting, measuring and interpreting small‑crack initiation and early propagation — including replication, photomicroscopy, interferometry, electrical‑potential methods, ultrasonic sizing and fracture‑mechanics treatment of short cracks.

Q: Who typically uses it?

A: Fatigue and fracture researchers, materials scientists, testing laboratories, and engineers in industries where early crack growth is critical (aerospace, automotive, defense, research institutions). It is used as a technical reference to support test method development and interpretation.

Q: Is it current or superseded?

A: The STP is a 1992 proceedings volume and remains a useful historical and technical reference. It is not a living consensus test method and therefore is not "superseded" in the same way as a normative ASTM standard; however, consensus standards and methods (for example ASTM E647, E399, E1820 and later revisions) have continued to evolve and provide formal test procedures that incorporate later research. Users should consult current versions of relevant ASTM test methods for prescriptive testing requirements.

Q: Is it part of a series?

A: Yes — it is part of the ASTM Special Technical Publication (STP) series (series number STP 1149) and was developed under ASTM Committee E08 (Fatigue and Fracture). STPs are individual volumes (symposium proceedings or collected papers) published by ASTM.

Q: What are the key keywords?

A: Small crack, microcrack, fatigue crack growth, fracture mechanics, measurement techniques, replication, photomicroscopy, interferometry, electrical potential, ultrasonic, ASTM STP.