What you will learn:
This course covers the environmental and reliability tests performed during design and in manufacturing. You will learn about reliability prediction techniques and factors. You will learn what you can expect from reliability growth testing environmental stress screening (ESS). You will know how environmental stress screening (ESS) is used to flush out flaws introduced during processing, fabrication and assembly. When highly accelerated for longer duration, this is called Reliability Test. You will learn how Reliability Test can flush out design flaws resulting from incompatible interfaces, from erroneous functional performance in different environments and from weak components. By the completion of this course you will be able to formulate environmental and reliability test strategies for your own products.
Who should attend:
This course is for test and reliability engineers interested in uncovering both design and manufacturing flaws through environmental stresses.
Detail:
COURSE OUTLINE:
Principles of Environmental Testing
- Controlling Infant Mortality Failures
- Identifying Root Causes in Manufacturing
Principles of Reliability Testing
- Testing for Durability
- Identifying Design Flaws
- Identifying Weak Components
Designing Tests
- Process Failure Mode Effects Analysis (FMEA) inputs
- Design FMEA inputs
- Fault Tree Analysis Inputs
Reliability Growth Testing
- Duane Model, AMSAA Model
- Accelerated Stresses
- ATAF vs. TAAF Strategy
Environmental Stress Screening (ESS) Techniques
- Highly Accelerated Stress Screening
- Highly Accelerated Stress Audit
- Proof of Production Screen
Statistical Analysis
- Probability Failure Distribution
- Weibull Graphical Method
- Weibayes Technique
Fundamentals in Life Testing
- Accelerated Test Principles
- Life Estimation
- Design Life Failure Rates
- Estimating Safety Margins
- Predictions of Spares
Test Models
- Arrhenius Model
- Inverse Power Law
- Limit Testing
Introduction
ESS Techniques
- Highly Accelerated Life Test
- Highly Accelerated Stress Screen
- Highly Accelerated Stress Audit
- Proof of Production Screen
Latent Defects
- High Rate Thermal Cycling
- Broad Band Vibration Stresses
Design for Test Detection
Implementing ESS
ESS Workshop
Costing ESS
- ESS Fixturing
- Equipment Considerations
Selling Management on ESS
- Technical Rewards
- Quality & Reliability Rewards
- Financial & Marketing Rewards
Reliability Demonstration
- Fixed Length Testing
- Fixed Failure Testing
- Minimum Life Predictions
Technology Trends